pic_3-5

/*
** Filename : Ex33.c
** Author   : Keita, Kameoka
** Note     : 2016.05.16
*/

#include <jeclib.h>

#define SW1 (0x01)
#define SW2 (0x02)
#define SW3 (0x04)
#define SW4 (0x08)
#define ALL_SW (SW1|SW2|SW3|SW4)
#define LED1 (0x10)
#define LED2 (0x20)
#define LED3 (0x40)
#define LED4 (0x80)
#define ALL_LED (LED1|LED2|LED3|LED4)
#define SW_PORT PORTA
#define LED_PORT PORTB

void main(void)
{
	unsigned char mem,sw_state;
	ADCON1 = 0x07;
	TRISA |= ALL_SW;
	TRISB &= ~ALL_LED;
	LED_PORT &= ~ALL_LED;
	while(1){
		if ( (sw_state = (~SW_PORT & ALL_SW)) != 0x00 ){
			mem = LED_PORT;
			LED_PORT &= ~ALL_LED;
			LED_PORT |= ~SW_PORT << 4 ^ mem;
			delay_ms(5);
			while(~SW_PORT == sw_state ) {
				; /* Do Nothing */
			}
			delay_ms(5);
		}
	}
}
/* End Of File */